From 28133432bea4a3fa01cd2f5e82a52a853cfccb84 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Tue, 27 Aug 2019 09:24:59 -0700 Subject: [PATCH] Ignore all 1'bx in (* init *) --- passes/sat/sat.cc | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/passes/sat/sat.cc b/passes/sat/sat.cc index bcc690fa3..430bba1e8 100644 --- a/passes/sat/sat.cc +++ b/passes/sat/sat.cc @@ -268,9 +268,7 @@ struct SatHelper RTLIL::SigSpec removed_bits; for (int i = 0; i < lhs.size(); i++) { RTLIL::SigSpec bit = lhs.extract(i, 1); - if (bit.is_fully_const() && rhs[i] == State::Sx) - rhs[i] = bit; - if (!satgen.initial_state.check_all(bit)) { + if (rhs[i] == State::Sx || !satgen.initial_state.check_all(bit)) { removed_bits.append(bit); lhs.remove(i, 1); rhs.remove(i, 1); -- 2.30.2